UPWELLING

n. process of sea water rising toward the surface from the bottom of the sea (Oceanography)

v. well up, flow or move upward

Upwelling is an oceanographic phenomenon that involves wind-driven motion of dense, cooler, and usually nutrient-rich water towards the ocean surface, replacing the warmer, usually nutrient-depleted surface water. There are at least five types of upwelling: coastal upwelling, large-scale wind-driven upwelling in the ocean interior, upwelling associated with eddies, topographically-associated upwelling, and broad-diffusive upwelling in the ocean interior.
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n. upwelling, process of sea water rising toward the surface from the bottom of the sea (Oceanography)

n. upwelling, process of sea water rising toward the surface from the bottom of the sea (Oceanography)